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Subject[PATCH] usb: musb: hdrc: fix dependency on USB_GADGET_DUALSPEED in Kconfig
Date
USB_MUSB_HDRC depends on USB_GADGET_DUALSPEED.  If HDRC is selected
but DUALSPEED is not, the kernel oopses:

[ 3.132781] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[ 3.141296] pgd = c0004000
[ 3.144134] [00000000] *pgd=00000000
[ 3.147918] Internal error: Oops: 5 [#1] SMP
[ 3.152404] Modules linked in:
[ 3.155609] CPU: 0 Not tainted (3.1.0-rc9-wl+ #417)
[ 3.161132] PC is at composite_setup+0x738/0xbb4
[ 3.165985] LR is at vprintk+0x400/0x47c
[ 3.170135] pc : [<c031df90>] lr : [<c004c150>] psr: 60000093
[ 3.170135] sp : c065dd50 ip : dfb1f0fc fp : c065ddbc
[ 3.182220] r10: 00000000 r9 : df8fcae8 r8 : df8fcaa0
[ 3.187713] r7 : 00000000 r6 : df8eaa20 r5 : dfae8ea0 r4 : 00000000
[ 3.194580] r3 : df8fcae8 r2 : 00010002 r1 : c065dc40 r0 : 00000047
[ 3.201446] Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel
[ 3.209228] Control: 10c53c7d Table: 8000404a DAC: 00000015
[ 3.215270] Process swapper (pid: 0, stack limit = 0xc065c2f8)
[ 3.221405] Stack: (0xc065dd50 to 0xc065e000)
[...]
[ 3.415405] [<c031df90>] (composite_setup+0x738/0xbb4) from [<c0310d18>] (musb_g_ep0_irq+0x9d0/0xaf8)
[ 3.425109] [<c0310d18>] (musb_g_ep0_irq+0x9d0/0xaf8) from [<c030fb04>] (musb_interrupt+0xb48/0xc74)
[ 3.434722] [<c030fb04>] (musb_interrupt+0xb48/0xc74) from [<c030fc98>] (generic_interrupt+0x68/0x80)
[ 3.444458] [<c030fc98>] (generic_interrupt+0x68/0x80) from [<c0095204>] (handle_irq_event_percpu+0x9c/0x234)
[ 3.454925] [<c0095204>] (handle_irq_event_percpu+0x9c/0x234) from [<c00953e8>] (handle_irq_event+0x4c/0x6c)
[ 3.465270] [<c00953e8>] (handle_irq_event+0x4c/0x6c) from [<c0097e10>] (handle_fasteoi_irq+0xd8/0x110)
[ 3.475158] [<c0097e10>] (handle_fasteoi_irq+0xd8/0x110) from [<c0094d2c>] (generic_handle_irq+0x34/0x3c)
[ 3.485260] [<c0094d2c>] (generic_handle_irq+0x34/0x3c) from [<c0014ae4>] (handle_IRQ+0x88/0xc8)
[ 3.494537] [<c0014ae4>] (handle_IRQ+0x88/0xc8) from [<c00085b0>] (asm_do_IRQ+0x18/0x1c)
[ 3.503051] [<c00085b0>] (asm_do_IRQ+0x18/0x1c) from [<c0429e78>] (__irq_svc+0x38/0xc0)

This patch changes Kconfig so that USB_GADGET_DUALSPEED is selected
automatically by USB_MUSB_HDRC.

Signed-off-by: Luciano Coelho <coelho@ti.com>
---
drivers/usb/musb/Kconfig | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
index fc34b8b..8da38b6 100644
--- a/drivers/usb/musb/Kconfig
+++ b/drivers/usb/musb/Kconfig
@@ -11,6 +11,7 @@ config USB_MUSB_HDRC
select TWL4030_USB if MACH_OMAP_3430SDP
select TWL6030_USB if MACH_OMAP_4430SDP || MACH_OMAP4_PANDA
select USB_OTG_UTILS
+ select USB_GADGET_DUALSPEED
tristate 'Inventra Highspeed Dual Role Controller (TI, ADI, ...)'
help
Say Y here if your system has a dual role high speed USB
--
1.7.4.1


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